The ChargeTech Portable Power Outlet means you'll never be without an outlet for your laptop, phone or tablet. Photo: Cult of Mac Deals

If you’ve ever tried to charge your laptop at the airport, you know that wall outlets are in demand like never before. ChargeTech’s portable power outlet means you’ll never be far from an outlet even if they’re all taken up or there’s not a wall around. It’s a game changer for anyone who needs a charge when they travel or go about their day, and you can get one now for only $139.99.

The portable battery from Halo is perfect for those times when I want to go stealth, keeping my iPhone 5 as free of those bulky, heavy battery cases as possible.

Between running levels of Hodappy Bird and checking Twitter for any vanity retweets, slapping photos of my meals up on Instagram and surreptitiously reading Facebook posts from ex-girlfriends, I am a battery killer.

With the Halo charger available, I found myself grabbing it and a lightning cable on my way out the door all the time, whether heading to the coffee shop or just for a quick bike ride along the Coastal Trail in Anchorage. It’s a perfect way to ensure I have the power I need on demand without strapping my iPhone into some fat case like the Mophie.

This isn't the easiest hack in the world, but it'll save you around $190.

External batteries for our Apple notebooks aren’t cheap, but they’re hugely worthwhile if you’re frequently on the road with little access to a power outlet. But before you shell out $250 for a ready-made solution, why not make your own for less than $60?